package org.liuyuantao.thread.old;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

/**
 * 使用Map模拟线程间的数据独立性
 */
public class ThreadScopeShareData {

    private static int data = 0;
    private static Map<Thread, Integer> threadData = new HashMap<Thread, Integer>();

    public static void main(String[] args) {
        for (int i = 0; i < 2; i++) {
            new Thread(() -> {
                int data = new Random().nextInt();
                System.out.println(Thread.currentThread().getName()
                        + " has put data :" + data);
                threadData.put(Thread.currentThread(), data);
                new A().get();
                new B().get();
            }).start();
        }
    }

    static class A {
        public void get() {
            int data = threadData.get(Thread.currentThread());
            System.out.println("A from " + Thread.currentThread().getName()
                    + " get data :" + data);
        }
    }

    static class B {
        public void get() {
            int data = threadData.get(Thread.currentThread());
            System.out.println("B from " + Thread.currentThread().getName()
                    + " get data :" + data);
        }
    }
}
